This guide describes the most common depreciation issues in FirstBIT Software and provides correct, system-compliant solutions.
All corrections are aligned with FirstBIT (1C-based) accounting logic and audit requirements.
General Rules for Depreciation in FirstBIT Software
Before troubleshooting, please note the following important rules:
Depreciation is calculated only through Month-End Closing (preferable way
Opening Balances and closed periods must not be edited
All corrections must be performed prospectively, in the current open period
Only standard FirstBIT documents should be used for adjustments
Errors:
- Issue: Excessive Accumulated Depreciation
Symptoms
Residual value becomes zero earlier than expected
Depreciation stops before useful life ends
Common Causes
Month-End Closing was performed out of sequence
Previous periods were closed incorrectly or partially
Resolution
Cancel Month-End Closing starting from the period where the issue began
Re-close periods strictly in chronological order
Verify depreciation values after each closing
2. Issue: Incorrect Depreciable Amount
Symptoms
Depreciation values do not match expectations
Remaining asset value is incorrect
Common Causes
Incorrect logic applied when entering opening balances
Salvage value or accumulated depreciation ignored
Correct Formula (FirstBIT Logic)
Depreciable Amount =
Gross Cost – Salvage Value – Accumulated Depreciation
Resolution
Calculate the correct depreciable amount
Adjust it using Changes of Fixed Assets Parameters
Do not modify accumulated depreciation
3. Issue: Editing Opening Balances or Closed Periods
Symptoms
Inconsistent reports
Errors during Month-End Closing
Audit risks
Cause
Manual corrections in historical periods
Resolution
Not Allowed:
Editing Opening Balance documents
Reposting closed periods
Correct Approach:
Adjust data only in the current open period
Use system-approved correction documents
4. Issue: Depreciation Is Not Calculated at All
Symptoms
No depreciation entries
No error messages displayed
Common Cause
Depreciation option is disabled in system settings
Resolution
Navigation:
Administration - Settings - Asset Management
Enable “Depreciation of Non-Current Assets”
5. Issue: Wrong Document Used for Corrections
Symptoms
Corrections do not affect depreciation
Values revert during Month-End Closing
Common Causes
Manual journal entries used instead of system documents
Direct register corrections
Resolution
Use only:
Changes of Fixed Assets Parameters
Standard Month-End Closing procedure
6. Issue: Changes Made but Depreciation Not Updated
Symptoms
Adjustments exist but depreciation remains incorrect
Common Cause
Month-End Closing was not re-run
Resolution
Repost the adjustment document
Re-run Month-End Closing in the correct order
Best Practice Checklist
- Always define useful life
- Verify depreciable amount calculation
- Never edit opening balances
- Correct only in open periods
- Use standard FirstBIT documents
- Close months strictly in sequence
Conclusion
Following these guidelines ensures:
correct depreciation calculation;
system stability;
compliance with accounting and audit requirements.
Thank you for being FirstBIT customer!